If your herbicide keeps causing callbacks, you should switch and treat your trees and shrubs with the longest residual on the market in BroadStar Herbicide. BroadStar is an odorless and dust-free granular preemergence herbicide that eliminates a broad spectrum of annual broadleaf and grassy weeds such as spurge, bittercress, oxalis, common groundsel and crabgrass. Long-lasting BroadStar provides an exceptional value that allows you to offer more and make more—a perfect solution for your highest value customers.